noun.
Any of various hoofed mammals of the order Perissodactyla, having an odd number of toes, either one or three, on each foot. Perissodactyls include the horses, tapirs, and rhinoceroses.
The Century Dictionary and Cyclopedia
Odd-toed, as a hoofed quadruped; of or pertaining to, or characteristic of, the Perissodactyla. Also perissodactylate, perissodactylic, perissodactylous.
noun.
A member of the Perissodactyla; a perissad.
the GNU version of the Collaborative International Dictionary of English